* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
+ * Copyright (C) 2019 Eddie Hung <eddie@fpgeh.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
+#include "kernel/celltypes.h"
+#include "kernel/utils.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
pool<SigBit> input_bits, output_bits;
dict<SigBit, SigBit> not_map, ff_map, alias_map;
dict<SigBit, pair<SigBit, SigBit>> and_map;
- vector<pair<SigBit, SigBit>> asserts, assumes;
- vector<pair<SigBit, SigBit>> liveness, fairness;
- pool<SigBit> initstate_bits;
+ //pool<SigBit> initstate_bits;
+ vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int>> ci_bits;
+ vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int,int>> co_bits;
vector<pair<int, int>> aig_gates;
vector<int> aig_latchin, aig_latchinit, aig_outputs;
int aig_m = 0, aig_i = 0, aig_l = 0, aig_o = 0, aig_a = 0;
- int aig_b = 0, aig_c = 0, aig_j = 0, aig_f = 0;
dict<SigBit, int> aig_map;
dict<SigBit, int> ordered_outputs;
dict<SigBit, int> ordered_latches;
- dict<SigBit, int> init_inputs;
- int initstate_ff = 0;
+ vector<Cell*> box_list;
+
+ //dict<SigBit, int> init_inputs;
+ //int initstate_ff = 0;
int mkgate(int a0, int a1)
{
{
aig_map[bit] = -1;
- if (initstate_bits.count(bit)) {
- log_assert(initstate_ff > 0);
- aig_map[bit] = initstate_ff;
- } else
+ //if (initstate_bits.count(bit)) {
+ // log_assert(initstate_ff > 0);
+ // aig_map[bit] = initstate_ff;
+ //} else
if (not_map.count(bit)) {
int a = bit2aig(not_map.at(bit)) ^ 1;
aig_map[bit] = a;
return aig_map.at(bit);
}
- XAigerWriter(Module *module, bool zinit_mode, bool imode, bool omode, bool bmode) : module(module), zinit_mode(zinit_mode), sigmap(module)
+ XAigerWriter(Module *module, bool zinit_mode, bool imode, bool omode, bool bmode, bool holes_mode=false) : module(module), zinit_mode(zinit_mode), sigmap(module)
{
pool<SigBit> undriven_bits;
pool<SigBit> unused_bits;
init_map[initsig[i]] = initval[i] == State::S1;
}
+ bool keep = wire->attributes.count("\\keep");
+
for (int i = 0; i < GetSize(wire); i++)
{
SigBit wirebit(wire, i);
if (wire->port_input)
input_bits.insert(bit);
+ else if (keep)
+ input_bits.insert(wirebit);
- if (wire->port_output) {
+ if (wire->port_output || keep) {
if (bit != wirebit)
alias_map[wirebit] = bit;
output_bits.insert(wirebit);
undriven_bits.erase(bit);
for (auto bit : output_bits)
- unused_bits.erase(bit);
+ if (!bit.wire->port_input)
+ unused_bits.erase(bit);
+
+ dict<SigBit, pool<IdString>> bit_drivers, bit_users;
+ TopoSort<IdString, RTLIL::sort_by_id_str> toposort;
+ bool abc_box_seen = false;
for (auto cell : module->cells())
{
+ RTLIL::Module* inst_module = module->design->module(cell->type);
+ bool known_type = yosys_celltypes.cell_known(cell->type);
+
+ if (!holes_mode) {
+ toposort.node(cell->name);
+ for (const auto &conn : cell->connections())
+ {
+ if (!cell->type.in("$_NOT_", "$_AND_")) {
+ if (known_type) {
+ if (conn.first.in("\\Q", "\\CTRL_OUT", "\\RD_DATA"))
+ continue;
+ if (cell->type == "$memrd" && conn.first == "\\DATA")
+ continue;
+ }
+
+ if (inst_module) {
+ RTLIL::Wire* inst_module_port = inst_module->wire(conn.first);
+ log_assert(inst_module_port);
+
+ if (inst_module_port->attributes.count("\\abc_flop_q"))
+ continue;
+ }
+ }
+
+ if (cell->input(conn.first)) {
+ // Ignore inout for the sake of topographical ordering
+ if (cell->output(conn.first)) continue;
+ for (auto bit : sigmap(conn.second))
+ bit_users[bit].insert(cell->name);
+ }
+
+ if (cell->output(conn.first))
+ for (auto bit : sigmap(conn.second))
+ bit_drivers[bit].insert(cell->name);
+ }
+ }
+
if (cell->type == "$_NOT_")
{
SigBit A = sigmap(cell->getPort("\\A").as_bit());
continue;
}
- if (cell->type.in("$_FF_", "$_DFF_N_", "$_DFF_P_"))
- {
- SigBit D = sigmap(cell->getPort("\\D").as_bit());
- SigBit Q = sigmap(cell->getPort("\\Q").as_bit());
- unused_bits.erase(D);
- undriven_bits.erase(Q);
- ff_map[Q] = D;
- continue;
- }
+ //if (cell->type.in("$_FF_", "$_DFF_N_", "$_DFF_P_"))
+ //{
+ // SigBit D = sigmap(cell->getPort("\\D").as_bit());
+ // SigBit Q = sigmap(cell->getPort("\\Q").as_bit());
+ // unused_bits.erase(D);
+ // undriven_bits.erase(Q);
+ // ff_map[Q] = D;
+ // continue;
+ //}
if (cell->type == "$_AND_")
{
continue;
}
- if (cell->type == "$initstate")
- {
- SigBit Y = sigmap(cell->getPort("\\Y").as_bit());
- undriven_bits.erase(Y);
- initstate_bits.insert(Y);
- continue;
- }
+ //if (cell->type == "$initstate")
+ //{
+ // SigBit Y = sigmap(cell->getPort("\\Y").as_bit());
+ // undriven_bits.erase(Y);
+ // initstate_bits.insert(Y);
+ // continue;
+ //}
- if (cell->type == "$assert")
- {
- SigBit A = sigmap(cell->getPort("\\A").as_bit());
- SigBit EN = sigmap(cell->getPort("\\EN").as_bit());
- unused_bits.erase(A);
- unused_bits.erase(EN);
- asserts.push_back(make_pair(A, EN));
- continue;
+ if (inst_module && inst_module->attributes.count("\\abc_box_id")) {
+ abc_box_seen = true;
}
-
- if (cell->type == "$assume")
- {
- SigBit A = sigmap(cell->getPort("\\A").as_bit());
- SigBit EN = sigmap(cell->getPort("\\EN").as_bit());
- unused_bits.erase(A);
- unused_bits.erase(EN);
- assumes.push_back(make_pair(A, EN));
- continue;
+ else {
+ for (const auto &c : cell->connections()) {
+ if (c.second.is_fully_const()) continue;
+ for (auto b : c.second.bits()) {
+ Wire *w = b.wire;
+ if (!w) continue;
+ auto is_input = cell->input(c.first);
+ auto is_output = cell->output(c.first);
+ log_assert(is_input || is_output);
+ if (is_input) {
+ if (!w->port_input) {
+ SigBit I = sigmap(b);
+ if (I != b)
+ alias_map[b] = I;
+ output_bits.insert(b);
+ unused_bits.erase(b);
+ }
+ }
+ if (is_output) {
+ input_bits.insert(b);
+ SigBit O = sigmap(b);
+ if (O != b)
+ alias_map[O] = b;
+ undriven_bits.erase(O);
+ }
+ }
+ }
}
- if (cell->type == "$live")
- {
- SigBit A = sigmap(cell->getPort("\\A").as_bit());
- SigBit EN = sigmap(cell->getPort("\\EN").as_bit());
- unused_bits.erase(A);
- unused_bits.erase(EN);
- liveness.push_back(make_pair(A, EN));
- continue;
- }
+ //log_warning("Unsupported cell type: %s (%s)\n", log_id(cell->type), log_id(cell));
+ }
- if (cell->type == "$fair")
- {
- SigBit A = sigmap(cell->getPort("\\A").as_bit());
- SigBit EN = sigmap(cell->getPort("\\EN").as_bit());
- unused_bits.erase(A);
- unused_bits.erase(EN);
- fairness.push_back(make_pair(A, EN));
- continue;
- }
+ if (abc_box_seen) {
+ for (auto &it : bit_users)
+ if (bit_drivers.count(it.first))
+ for (auto driver_cell : bit_drivers.at(it.first))
+ for (auto user_cell : it.second)
+ toposort.edge(driver_cell, user_cell);
+
+ toposort.sort();
+ for (auto cell_name : toposort.sorted) {
+ RTLIL::Cell *cell = module->cell(cell_name);
+ RTLIL::Module* box_module = module->design->module(cell->type);
+ if (!box_module || !box_module->attributes.count("\\abc_box_id"))
+ continue;
- if (cell->type == "$anyconst")
- {
- for (auto bit : sigmap(cell->getPort("\\Y"))) {
- undriven_bits.erase(bit);
- ff_map[bit] = bit;
+ // Fully pad all unused input connections of this box cell with S0
+ // Fully pad all undriven output connections of this box cell with anonymous wires
+ // NB: Assume box_module->ports are sorted alphabetically
+ // (as RTLIL::Module::fixup_ports() would do)
+ for (const auto &port_name : box_module->ports) {
+ RTLIL::Wire* w = box_module->wire(port_name);
+ log_assert(w);
+ auto it = cell->connections_.find(port_name);
+ if (w->port_input) {
+ RTLIL::SigSpec rhs;
+ if (it != cell->connections_.end()) {
+ if (GetSize(it->second) < GetSize(w))
+ it->second.append(RTLIL::SigSpec(RTLIL::S0, GetSize(w)-GetSize(it->second)));
+ rhs = it->second;
+ }
+ else {
+ rhs = RTLIL::SigSpec(RTLIL::S0, GetSize(w));
+ cell->setPort(port_name, rhs);
+ }
+
+ int offset = 0;
+ for (const auto &b : rhs.bits()) {
+ SigBit I = sigmap(b);
+ if (I != b)
+ alias_map[b] = I;
+ co_bits.emplace_back(b, cell, port_name, offset++, 0);
+ unused_bits.erase(b);
+ }
+ }
+ if (w->port_output) {
+ RTLIL::SigSpec rhs;
+ auto it = cell->connections_.find(w->name);
+ if (it != cell->connections_.end()) {
+ if (GetSize(it->second) < GetSize(w))
+ it->second.append(module->addWire(NEW_ID, GetSize(w)-GetSize(it->second)));
+ rhs = it->second;
+ }
+ else {
+ rhs = module->addWire(NEW_ID, GetSize(w));
+ cell->setPort(port_name, rhs);
+ }
+
+ int offset = 0;
+ for (const auto &b : rhs.bits()) {
+ ci_bits.emplace_back(b, cell, port_name, offset++);
+ SigBit O = sigmap(b);
+ if (O != b)
+ alias_map[O] = b;
+ undriven_bits.erase(O);
+ }
+ }
}
- continue;
+ box_list.emplace_back(cell);
}
- if (cell->type == "$anyseq")
- {
- for (auto bit : sigmap(cell->getPort("\\Y"))) {
- undriven_bits.erase(bit);
- input_bits.insert(bit);
- }
- continue;
- }
+ // TODO: Free memory from toposort, bit_drivers, bit_users
+ }
- log_error("Unsupported cell type: %s (%s)\n", log_id(cell->type), log_id(cell));
+ for (auto bit : input_bits) {
+ RTLIL::Wire *wire = bit.wire;
+ // If encountering an inout port, or a keep-ed wire, then create a new wire
+ // with $inout.out suffix, make it a PO driven by the existing inout, and
+ // inherit existing inout's drivers
+ if ((wire->port_input && wire->port_output && !undriven_bits.count(bit))
+ || wire->attributes.count("\\keep")) {
+ log_assert(input_bits.count(bit) && output_bits.count(bit));
+ RTLIL::Wire *new_wire = module->wire(wire->name.str() + "$inout.out");
+ if (!new_wire)
+ new_wire = module->addWire(wire->name.str() + "$inout.out", GetSize(wire));
+ SigBit new_bit(new_wire, bit.offset);
+ module->connect(new_bit, bit);
+ if (not_map.count(bit))
+ not_map[new_bit] = not_map.at(bit);
+ else if (and_map.count(bit))
+ and_map[new_bit] = and_map.at(bit);
+ else if (alias_map.count(bit))
+ alias_map[new_bit] = alias_map.at(bit);
+ else
+ //log_abort();
+ alias_map[new_bit] = bit;
+ output_bits.erase(bit);
+ output_bits.insert(new_bit);
+ }
}
+ // Erase all POs that are undriven
+ if (!holes_mode)
+ for (auto bit : undriven_bits)
+ output_bits.erase(bit);
for (auto bit : unused_bits)
undriven_bits.erase(bit);
- if (!undriven_bits.empty()) {
+ if (!undriven_bits.empty() && !holes_mode) {
undriven_bits.sort();
for (auto bit : undriven_bits) {
log_warning("Treating undriven bit %s.%s like $anyseq.\n", log_id(module), log_signal(bit));
}
init_map.sort();
- input_bits.sort();
- output_bits.sort();
+ if (holes_mode) {
+ struct sort_by_port_id {
+ bool operator()(const RTLIL::SigBit& a, const RTLIL::SigBit& b) const {
+ return a.wire->port_id < b.wire->port_id;
+ }
+ };
+ input_bits.sort(sort_by_port_id());
+ output_bits.sort(sort_by_port_id());
+ }
+ else {
+ input_bits.sort();
+ output_bits.sort();
+ }
+
not_map.sort();
ff_map.sort();
and_map.sort();
aig_map[bit] = 2*aig_m;
}
- if (imode && input_bits.empty()) {
+ for (auto &c : ci_bits) {
aig_m++, aig_i++;
+ aig_map[std::get<0>(c)] = 2*aig_m;
}
- if (zinit_mode)
- {
- for (auto it : ff_map) {
- if (init_map.count(it.first))
- continue;
- aig_m++, aig_i++;
- init_inputs[it.first] = 2*aig_m;
- }
+ if (imode && input_bits.empty()) {
+ aig_m++, aig_i++;
}
- int fair_live_inputs_cnt = GetSize(liveness);
- int fair_live_inputs_m = aig_m;
-
- aig_m += fair_live_inputs_cnt;
- aig_i += fair_live_inputs_cnt;
+ //if (zinit_mode)
+ //{
+ // for (auto it : ff_map) {
+ // if (init_map.count(it.first))
+ // continue;
+ // aig_m++, aig_i++;
+ // init_inputs[it.first] = 2*aig_m;
+ // }
+ //}
for (auto it : ff_map) {
aig_m++, aig_l++;
aig_latchinit.push_back(init_map.at(it.first) ? 1 : 0);
}
- if (!initstate_bits.empty() || !init_inputs.empty()) {
- aig_m++, aig_l++;
- initstate_ff = 2*aig_m+1;
- aig_latchinit.push_back(0);
- }
-
- int fair_live_latches_cnt = GetSize(fairness) + 2*GetSize(liveness);
- int fair_live_latches_m = aig_m;
- int fair_live_latches_l = aig_l;
-
- aig_m += fair_live_latches_cnt;
- aig_l += fair_live_latches_cnt;
-
- for (int i = 0; i < fair_live_latches_cnt; i++)
- aig_latchinit.push_back(0);
-
- if (zinit_mode)
- {
- for (auto it : ff_map)
- {
- int l = ordered_latches[it.first];
-
- if (aig_latchinit.at(l) == 1)
- aig_map[it.first] ^= 1;
-
- if (aig_latchinit.at(l) == 2)
- {
- int gated_ffout = mkgate(aig_map[it.first], initstate_ff^1);
- int gated_initin = mkgate(init_inputs[it.first], initstate_ff);
- aig_map[it.first] = mkgate(gated_ffout^1, gated_initin^1)^1;
- }
- }
- }
+ //if (!initstate_bits.empty() || !init_inputs.empty()) {
+ // aig_m++, aig_l++;
+ // initstate_ff = 2*aig_m+1;
+ // aig_latchinit.push_back(0);
+ //}
+
+ //if (zinit_mode)
+ //{
+ // for (auto it : ff_map)
+ // {
+ // int l = ordered_latches[it.first];
+
+ // if (aig_latchinit.at(l) == 1)
+ // aig_map[it.first] ^= 1;
+
+ // if (aig_latchinit.at(l) == 2)
+ // {
+ // int gated_ffout = mkgate(aig_map[it.first], initstate_ff^1);
+ // int gated_initin = mkgate(init_inputs[it.first], initstate_ff);
+ // aig_map[it.first] = mkgate(gated_ffout^1, gated_initin^1)^1;
+ // }
+ // }
+ //}
for (auto it : ff_map) {
int a = bit2aig(it.second);
aig_latchin.push_back(a);
}
- if (!initstate_bits.empty() || !init_inputs.empty())
- aig_latchin.push_back(1);
+ //if (!initstate_bits.empty() || !init_inputs.empty())
+ // aig_latchin.push_back(1);
+
+ for (auto &c : co_bits) {
+ RTLIL::SigBit bit = std::get<0>(c);
+ std::get<4>(c) = aig_o++;
+ ordered_outputs[bit] = std::get<4>(c);
+ aig_outputs.push_back(bit2aig(bit));
+ }
for (auto bit : output_bits) {
- aig_o++;
- ordered_outputs[bit] = aig_o-1;
+ ordered_outputs[bit] = aig_o++;
aig_outputs.push_back(bit2aig(bit));
}
aig_outputs.push_back(0);
}
- for (auto it : asserts) {
- aig_b++;
- int bit_a = bit2aig(it.first);
- int bit_en = bit2aig(it.second);
- aig_outputs.push_back(mkgate(bit_a^1, bit_en));
- }
-
- if (bmode && asserts.empty()) {
- aig_b++;
+ if (bmode) {
+ //aig_b++;
aig_outputs.push_back(0);
}
-
- for (auto it : assumes) {
- aig_c++;
- int bit_a = bit2aig(it.first);
- int bit_en = bit2aig(it.second);
- aig_outputs.push_back(mkgate(bit_a^1, bit_en)^1);
- }
-
- for (auto it : liveness)
- {
- int input_m = ++fair_live_inputs_m;
- int latch_m1 = ++fair_live_latches_m;
- int latch_m2 = ++fair_live_latches_m;
-
- log_assert(GetSize(aig_latchin) == fair_live_latches_l);
- fair_live_latches_l += 2;
-
- int bit_a = bit2aig(it.first);
- int bit_en = bit2aig(it.second);
- int bit_s = 2*input_m;
- int bit_q1 = 2*latch_m1;
- int bit_q2 = 2*latch_m2;
-
- int bit_d1 = mkgate(mkgate(bit_s, bit_en)^1, bit_q1^1)^1;
- int bit_d2 = mkgate(mkgate(bit_d1, bit_a)^1, bit_q2^1)^1;
-
- aig_j++;
- aig_latchin.push_back(bit_d1);
- aig_latchin.push_back(bit_d2);
- aig_outputs.push_back(mkgate(bit_q1, bit_q2^1));
- }
-
- for (auto it : fairness)
- {
- int latch_m = ++fair_live_latches_m;
-
- log_assert(GetSize(aig_latchin) == fair_live_latches_l);
- fair_live_latches_l += 1;
-
- int bit_a = bit2aig(it.first);
- int bit_en = bit2aig(it.second);
- int bit_q = 2*latch_m;
-
- aig_f++;
- aig_latchin.push_back(mkgate(mkgate(bit_q^1, bit_en^1)^1, bit_a^1));
- aig_outputs.push_back(bit_q^1);
- }
}
- void write_aiger(std::ostream &f, bool ascii_mode, bool miter_mode, bool symbols_mode)
+ void write_aiger(std::ostream &f, bool ascii_mode, bool miter_mode, bool symbols_mode, bool omode)
{
- int aig_obc = aig_o + aig_b + aig_c;
- int aig_obcj = aig_obc + aig_j;
- int aig_obcjf = aig_obcj + aig_f;
+ int aig_obc = aig_o;
+ int aig_obcj = aig_obc;
+ int aig_obcjf = aig_obcj;
log_assert(aig_m == aig_i + aig_l + aig_a);
log_assert(aig_l == GetSize(aig_latchin));
log_assert(aig_l == GetSize(aig_latchinit));
log_assert(aig_obcjf == GetSize(aig_outputs));
- if (miter_mode) {
- if (aig_b || aig_c || aig_j || aig_f)
- log_error("Running AIGER back-end in -miter mode, but design contains $assert, $assume, $live and/or $fair cells!\n");
- f << stringf("%s %d %d %d 0 %d %d\n", ascii_mode ? "aag" : "aig", aig_m, aig_i, aig_l, aig_a, aig_o);
- } else {
- f << stringf("%s %d %d %d %d %d", ascii_mode ? "aag" : "aig", aig_m, aig_i, aig_l, aig_o, aig_a);
- if (aig_b || aig_c || aig_j || aig_f)
- f << stringf(" %d %d %d %d", aig_b, aig_c, aig_j, aig_f);
- f << stringf("\n");
- }
+ f << stringf("%s %d %d %d %d %d", ascii_mode ? "aag" : "aig", aig_m, aig_i, aig_l, aig_o, aig_a);
+ f << stringf("\n");
if (ascii_mode)
{
{
dict<string, vector<string>> symbols;
+ bool output_seen = false;
for (auto wire : module->wires())
{
- if (wire->name[0] == '$')
- continue;
+ //if (wire->name[0] == '$')
+ // continue;
SigSpec sig = sigmap(wire);
for (int i = 0; i < GetSize(wire); i++)
{
- if (sig[i].wire == nullptr) {
- if (wire->port_output)
- sig[i] = SigBit(wire, i);
- else
- continue;
- }
-
- if (wire->port_input) {
+ RTLIL::SigBit b(wire, i);
+ if (input_bits.count(b)) {
int a = aig_map.at(sig[i]);
log_assert((a & 1) == 0);
if (GetSize(wire) != 1)
symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("%s", log_id(wire)));
}
- if (wire->port_output) {
- int o = ordered_outputs.at(SigSpec(wire, i));
+ if (output_bits.count(b)) {
+ int o = ordered_outputs.at(b);
+ output_seen = !miter_mode;
if (GetSize(wire) != 1)
symbols[stringf("%c%d", miter_mode ? 'b' : 'o', o)].push_back(stringf("%s[%d]", log_id(wire), i));
else
symbols[stringf("%c%d", miter_mode ? 'b' : 'o', o)].push_back(stringf("%s", log_id(wire)));
}
- if (init_inputs.count(sig[i])) {
- int a = init_inputs.at(sig[i]);
- log_assert((a & 1) == 0);
- if (GetSize(wire) != 1)
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s[%d]", log_id(wire), i));
- else
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s", log_id(wire)));
- }
+ //if (init_inputs.count(sig[i])) {
+ // int a = init_inputs.at(sig[i]);
+ // log_assert((a & 1) == 0);
+ // if (GetSize(wire) != 1)
+ // symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s[%d]", log_id(wire), i));
+ // else
+ // symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s", log_id(wire)));
+ //}
if (ordered_latches.count(sig[i])) {
int l = ordered_latches.at(sig[i]);
}
}
+ if (omode && !output_seen)
+ symbols["o0"].push_back("__dummy_o__");
+
symbols.sort();
for (auto &sym : symbols) {
}
}
- f << stringf("c\nGenerated by %s\n", yosys_version_str);
+ f << "c";
+
+ if (!box_list.empty()) {
+ std::stringstream h_buffer;
+ auto write_h_buffer = [&h_buffer](int i32) {
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int i32_be = _byteswap_ulong(i32);
+#else
+ int i32_be = __builtin_bswap32(i32);
+#endif
+ h_buffer.write(reinterpret_cast<const char*>(&i32_be), sizeof(i32_be));
+ };
+ int num_outputs = output_bits.size();
+ if (omode && num_outputs == 0)
+ num_outputs = 1;
+ write_h_buffer(1);
+ write_h_buffer(input_bits.size() + ci_bits.size());
+ write_h_buffer(num_outputs + co_bits.size());
+ write_h_buffer(input_bits.size());
+ write_h_buffer(num_outputs);
+ write_h_buffer(box_list.size());
+
+ RTLIL::Module *holes_module = nullptr;
+ holes_module = module->design->addModule("\\__holes__");
+ log_assert(holes_module);
+
+ int port_id = 1;
+ int box_count = 0;
+ for (auto cell : box_list) {
+ RTLIL::Module* box_module = module->design->module(cell->type);
+ int box_inputs = 0, box_outputs = 0;
+ Cell *holes_cell = nullptr;
+ if (box_module->get_bool_attribute("\\whitebox"))
+ holes_cell = holes_module->addCell(cell->name, cell->type);
+
+ RTLIL::Wire *holes_wire;
+ // TODO: Only sort once
+ box_module->wires_.sort(RTLIL::sort_by_id_str());
+ for (const auto w : box_module->wires()) {
+ RTLIL::SigSpec port_wire;
+ if (w->port_input) {
+ for (int i = 0; i < GetSize(w); i++) {
+ box_inputs++;
+ holes_wire = holes_module->wire(stringf("\\i%d", box_inputs));
+ if (!holes_wire) {
+ holes_wire = holes_module->addWire(stringf("\\i%d", box_inputs));
+ holes_wire->port_input = true;
+ holes_wire->port_id = port_id++;
+ holes_module->ports.push_back(holes_wire->name);
+ }
+ if (holes_cell)
+ port_wire.append(holes_wire);
+ }
+ if (!port_wire.empty())
+ holes_cell->setPort(w->name, port_wire);
+ }
+ if (w->port_output) {
+ box_outputs += GetSize(w);
+ for (int i = 0; i < GetSize(w); i++) {
+ if (GetSize(w) == 1)
+ holes_wire = holes_module->addWire(stringf("%s.%s", cell->name.c_str(), w->name.c_str()));
+ else
+ holes_wire = holes_module->addWire(stringf("%s.%s[%d]", cell->name.c_str(), w->name.c_str(), i));
+ holes_wire->port_output = true;
+ holes_wire->port_id = port_id++;
+ holes_module->ports.push_back(holes_wire->name);
+ if (holes_cell)
+ port_wire.append(holes_wire);
+ else
+ holes_module->connect(holes_wire, RTLIL::S0);
+ }
+ if (!port_wire.empty())
+ holes_cell->setPort(w->name, port_wire);
+ }
+ }
+
+ write_h_buffer(box_inputs);
+ write_h_buffer(box_outputs);
+ write_h_buffer(box_module->attributes.at("\\abc_box_id").as_int());
+ write_h_buffer(box_count++);
+ }
+
+ f << "h";
+ std::string buffer_str = h_buffer.str();
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int buffer_size_be = _byteswap_ulong(buffer_str.size());
+#else
+ int buffer_size_be = __builtin_bswap32(buffer_str.size());
+#endif
+ f.write(reinterpret_cast<const char*>(&buffer_size_be), sizeof(buffer_size_be));
+ f.write(buffer_str.data(), buffer_str.size());
+
+ if (holes_module) {
+ // NB: fixup_ports() will sort ports by name
+ //holes_module->fixup_ports();
+ holes_module->check();
+
+ holes_module->design->selection_stack.emplace_back(false);
+ RTLIL::Selection& sel = holes_module->design->selection_stack.back();
+ sel.select(holes_module);
+
+ // TODO: Should not need to opt_merge if we only instantiate
+ // each box type once...
+ Pass::call(holes_module->design, "opt_merge -share_all");
+
+ Pass::call(holes_module->design, "flatten -wb");
+
+ // TODO: Should techmap all lib_whitebox-es once
+ //Pass::call(holes_module->design, "techmap");
+
+ Pass::call(holes_module->design, "aigmap");
+ Pass::call(holes_module->design, "clean -purge");
+
+ holes_module->design->selection_stack.pop_back();
+
+ std::stringstream a_buffer;
+ XAigerWriter writer(holes_module, false /*zinit_mode*/, false /*imode*/, false /*omode*/, false /*bmode*/, true /* holes_mode */);
+ writer.write_aiger(a_buffer, false /*ascii_mode*/, false /*miter_mode*/, false /*symbols_mode*/, false /*omode*/);
+
+ f << "a";
+ std::string buffer_str = a_buffer.str();
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int buffer_size_be = _byteswap_ulong(buffer_str.size());
+#else
+ int buffer_size_be = __builtin_bswap32(buffer_str.size());
+#endif
+ f.write(reinterpret_cast<const char*>(&buffer_size_be), sizeof(buffer_size_be));
+ f.write(buffer_str.data(), buffer_str.size());
+ holes_module->design->remove(holes_module);
+ }
+
+ std::stringstream r_buffer;
+ auto write_r_buffer = [&r_buffer](int i32) {
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int i32_be = _byteswap_ulong(i32);
+#else
+ int i32_be = __builtin_bswap32(i32);
+#endif
+ r_buffer.write(reinterpret_cast<const char*>(&i32_be), sizeof(i32_be));
+ };
+ write_r_buffer(0);
+
+ f << "r";
+ buffer_str = r_buffer.str();
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ buffer_size_be = _byteswap_ulong(buffer_str.size());
+#else
+ buffer_size_be = __builtin_bswap32(buffer_str.size());
+#endif
+ f.write(reinterpret_cast<const char*>(&buffer_size_be), sizeof(buffer_size_be));
+ f.write(buffer_str.data(), buffer_str.size());
+ }
+
+ f << stringf("Generated by %s\n", yosys_version_str);
}
- void write_map(std::ostream &f, bool verbose_map)
+ void write_map(std::ostream &f, bool verbose_map, bool omode)
{
dict<int, string> input_lines;
dict<int, string> init_lines;
for (auto wire : module->wires())
{
- if (!verbose_map && wire->name[0] == '$')
- continue;
+ //if (!verbose_map && wire->name[0] == '$')
+ // continue;
SigSpec sig = sigmap(wire);
for (int i = 0; i < GetSize(wire); i++)
{
- if (aig_map.count(sig[i]) == 0 || sig[i].wire == nullptr)
- continue;
-
- int a = aig_map.at(sig[i]);
-
- if (verbose_map)
- wire_lines[a] += stringf("wire %d %d %s\n", a, i, log_id(wire));
-
- if (wire->port_input) {
+ RTLIL::SigBit b(wire, i);
+ if (input_bits.count(b)) {
+ int a = aig_map.at(b);
log_assert((a & 1) == 0);
input_lines[a] += stringf("input %d %d %s\n", (a >> 1)-1, i, log_id(wire));
}
- if (wire->port_output) {
- int o = ordered_outputs.at(sig[i]);
- output_lines[o] += stringf("output %d %d %s\n", o, i, log_id(wire));
+ if (output_bits.count(b)) {
+ int o = ordered_outputs.at(b);
+ output_lines[o] += stringf("output %lu %d %s\n", o - co_bits.size(), i, log_id(wire));
+ continue;
}
- if (init_inputs.count(sig[i])) {
- int a = init_inputs.at(sig[i]);
- log_assert((a & 1) == 0);
- init_lines[a] += stringf("init %d %d %s\n", (a >> 1)-1, i, log_id(wire));
- }
+ //if (init_inputs.count(sig[i])) {
+ // int a = init_inputs.at(sig[i]);
+ // log_assert((a & 1) == 0);
+ // init_lines[a] += stringf("init %d %d %s\n", (a >> 1)-1, i, log_id(wire));
+ // continue;
+ //}
if (ordered_latches.count(sig[i])) {
int l = ordered_latches.at(sig[i]);
latch_lines[l] += stringf("invlatch %d %d %s\n", l, i, log_id(wire));
else
latch_lines[l] += stringf("latch %d %d %s\n", l, i, log_id(wire));
+ continue;
+ }
+
+ if (verbose_map) {
+ if (aig_map.count(sig[i]) == 0)
+ continue;
+
+ int a = aig_map.at(sig[i]);
+ wire_lines[a] += stringf("wire %d %d %s\n", a, i, log_id(wire));
}
}
}
input_lines.sort();
for (auto &it : input_lines)
f << it.second;
+ log_assert(input_lines.size() == input_bits.size());
init_lines.sort();
for (auto &it : init_lines)
f << it.second;
+ int box_count = 0;
+ for (auto cell : box_list)
+ f << stringf("box %d %d %s\n", box_count++, 0, log_id(cell->name));
+
output_lines.sort();
for (auto &it : output_lines)
f << it.second;
+ log_assert(output_lines.size() == output_bits.size());
+ if (omode && output_bits.empty())
+ f << "output " << output_lines.size() << " 0 __dummy_o__\n";
latch_lines.sort();
for (auto &it : latch_lines)
log("all unsupported cells will be converted into psuedo-inputs and pseudo-outputs.\n");
log("\n");
log(" -ascii\n");
- log(" write ASCII version of AGIER format\n");
+ log(" write ASCII version of AIGER format\n");
log("\n");
log(" -zinit\n");
log(" convert FFs to zero-initialized FFs, adding additional inputs for\n");
log_error("Can't find top module in current design!\n");
XAigerWriter writer(top_module, zinit_mode, imode, omode, bmode);
- writer.write_aiger(*f, ascii_mode, miter_mode, symbols_mode);
+ writer.write_aiger(*f, ascii_mode, miter_mode, symbols_mode, omode);
if (!map_filename.empty()) {
std::ofstream mapf;
mapf.open(map_filename.c_str(), std::ofstream::trunc);
if (mapf.fail())
log_error("Can't open file `%s' for writing: %s\n", map_filename.c_str(), strerror(errno));
- writer.write_map(mapf, verbose_map);
+ writer.write_map(mapf, verbose_map, omode);
}
}
} XAigerBackend;